Pistons - Pennsylvania A3 Switcher, Part 51

[@RonCovell]

Quinn - congratulations on reaching a significant milestone in your build! You know, now that you have articulated how the 'chooch' factor makes traditional steam engines superior to tubines, I may start working on a device that can be attached to a turbine to give it a chooching sound - the best of both worlds!

[@daveeckblad]

Perhaps you could make a turbo booster and blowoff valve out of sheet metal? if anyone could, it's you Ron!

[@Paul-FrancisB]

I recognised Winky's parting tool straight away, he has a fascinating approach to problem solving and a really interesting channel

[@Raye938]

I just had a fever dream where Abom79 was doing model engine content and Blondihacks was doing huge metal hogging projects but with their stylistic choices intact and it was wild. She used a forklift to catch a giant nut she fabricated with a "Yahtzee!"

[@myfavoriteviewer306]

That's a crossover I didn't know I needed until just now! 😂

[@Kami8705]

I definitely want to see that. Blondihacks and either Abom or Cutting Edge Engineering

[@Deadbrokemine]

As a boy I had a pneumatic cylinder as part of a lego set, along with a simple valve and pump. I spent an embarrassingly large amount of time moving the piston back and forth. It is indeed extremely satisfying.

[@billstoner5559]

Model is looking exquisite! A testament to your skill. 😊

[@jimsvideos7201]

Well now, it’s the best part of Saturday afternoon. 😊

[@warrenholmar1129]

My favourite part of Sunday morning. I stayed up until 06:00 for this.

[@johnmoorefilm]

It really is, isn’t it…?👍

[@EngineerRaisedInKingston]

What an amazing mlestone, Quinn! The way that piston moves in the cylinder is truly mesmerising. Can't wait to see other things start to move too!

[@thedabblingwarlock]

I have thoroughly enjoyed this series. I'm looking forward to first chooch.

[@JasperJanssen]

Just as a point of order - “the turn of the century” these days means 24 years ago, not 1900. Father Time has a lot to answer for

[@malcolmhodgson7540]

Needs the word 'last' inserted. Turn of the last century. Then we would both be happy😂

[@jeremylastname873]

Growing up in a home full of early American antiques, we were referring to the years 1799/1800. 😂

[@jeremylastname873]

By the way, 24 years ago (almost 25), the turn of the millennium was the event of the year 🎉 So, I think millennials should have good reason to solely refer to 2000 as the turn of the millennium.

[@joshmbrown42]

No, no, no! The 20's is the 1920's, it was like 80 years ago, and I'm not old!

[@davidmam]

@@jeremylastname873That would be the end of the last millenium.

[@support2587]

Gives a new meaning to Spring Pass.

[@securitydinosaur]

Instead of you saying "thank you very much" it is we who should say "Thank you very much for showing us"! :-)

[@Dusty-Builds]

I really love watching your videos. However, I really wish they were longer.

[@robertpearson8798]

So do I but I imagine it can be challenging to produce content almost every week. Leave them wanting more.

[@darrinswanson]

Thanks!

[@terminalpsychosis8022]

Marjor step stone on this build, but still a long way to go. Thanks for sharing the journey.

[@BetweenTheBorders]

I never get tired of interchangeable parts. Yes, I'm amused you could swap the pistons successfully. I like strange things.

[@akaHarvesteR]

We take it for granted now, but this was actually a monumental milestone of industrial times.

[@BetweenTheBorders]

@akaHarvesteR I was told by reputable sources that wing nuts were used for armor interchanges in the 16th century, but I think even those were bespoke and unique. Imagine, every screw being unique.

[@matrix626]

This is getting exciting as you get closer to the finish. One complaint.. Two uses of the parting blade and no Yahtzee?!?!!? I'm disappointed.. We need double Yahtzees next time.

[@OGTtom]

I really look forward to your videos , thank you Quinn .

[@coreybonsall]

The chuga chuga nears! This looks so cool!

[@betaich]

That parting tool is really cool on vieo we can even see when it adjusts it self, the chip flow shortly stops and than gets fast again really cool..

[@paulmorrey4298]

Thanks Quinn

[@terrytopliss9506]

Nicely done Quinn.👍👍

[@adammendel5572]

Train week! Choo choo!

[@johnmoorefilm]

The spring-loaded tool reminds us of the approach to take to life: a little flexibility can yield great results….(working on my sermon for tomorrow 😅)

[@MrFixit1]

Love this channel Love the host! Great content and humble instructions!

[@garychaiken808]

Great job. Thank you 😊

[@manythingslefttobuild]

Great video Quinn, looking forward to more engine linkage parts. Is there a camera angle that would show the spring loaded parting blade jiggling up and down?

[@Blondihacks]

It’s microscopic

[@rjay1674]

Wow, that thing looks like a piece of jewelry. Nice job.

[@roderos]

Did you see the video Pete's railway made about clupet piston rings? They look supercool although they might be tricky to make smaller ones. The flexible parter looks amazing! Will check out that video next

[@kevinbelcher8490]

I love this project!

[@mikegilbert5434]

How Steamy Got Her Grooves Back.

[@AmrinderRandhawa]

You didn't say Yahtzee when parting with the your new parting contraption! I feel like if called for one.

[@lescrooge]

That looks great. Nice 😎👍

[@larryschweitzer4904]

Perfection!

[@whiteknight1246]

Is that why a spring pass is called a spring pass? To clean up any areas the spring engaged that are off dimention from spring loaded tools? I know nothing about lathes except what ive learned watching Quinn and other YT machinists

[@jeremylastname873]

Perhaps, but everything must “spring,” or break. So, when the tool, designed for springing or not, exerts pressure on a piece, everything springs at least a little bit. So, a spring pass takes up much of the inherent springing of material, tool, machine, etc..

[@derekgee8504]

Great video , thank you

[@tonyshaffer6600]

welcome back

[@0xFEEDC0DE]

"Measure once, cut twice."

[@metamorphiczeolite]

18:25: ❤

[@jimmythejock4376]

Quinn! Spring loaded parting blade? As a long time viewer I thought rigidity was paramount. 3 years ago on your video Lathe compound (top slide) tricks you suggested deleting it for more rigidity. And Metal Lathe tutorial 15 parting operations rigidity is important. So how does a Spring loaded parting blade holder fit into all this? 😮 loving the videos all the same. I have lots of problems with parting btw.

[@ThomasOnTape]

Preface: not an expert, this is largely my intuition. If you pause at 2:10, you can see the "spring" mount is a pretty hefty piece of steel and it's riding against the toolholder's face, so it can only move in one plane. That's the key part. If the tool twists so the long edge digs into the face being parted, that's a quick trip to a broken parting blade (and a broken heart). The spring attachment only allows it to move into or out of the cut, so it can reduce its own workload if it's being driven a little too hard.

[@VintageTechFan]

What's the problem with small cast iron rings? Too much bending needed to get them in the groove at those small bore sizes?

[@kaydog2008]

Thing is if the piston is made of forge steel with teflon piston rings and bushing it doesn't expand as much.👈👈🤔🤔🤔🤔Plus will last longer only having to replace rings and bushings.

[@mr.b2232]

👍😎

[@jamest828]

In a modern engine it has cross hatching for oil retention on the cylinder walls so would that be beneficial in a steam engine or would the cross hatching increase blow lowering the efficiency? Or is it just not necessary because of the lower cylinder temperatures/ pressures and the steam having oil in it? I haven’t done any research into this subject it just came to mind while watching the video

[@Blondihacks]

No, steam oil works differently. No crosshatching is used.

[@jamesmeader6539]

Great to see those pistons move under air pressure... delightful foreshadowing of what is to come. Well done!

[@malcolmhodgson7540]

I have never seen you machine anything with the oscilloscope you switch on in your intro montage! Do you never sharpen the oscilloscope?

[@mrimmortal1579]

Fun fact: oscilloscopes are self-sharpening!

[@Blondihacks]

Someone has never read my blog

[@twotone3070]

Well Malcolm, I thought is was a purely whimsical comment that works whether you know the truth or not.

[@tomgidden]

aaaand…. YAHZSPRING!

[@rondashadow]

hahahahaha

[@sandymcvicar2325]

You know you are old when... You refer to the change from the 1800"s to the 1900"s as the turn of the century. Almost 25 years into the 21st. Just love your content, you make my ossified brain hurt. Keep up the excellent mind expanding work!

[@johnmoorefilm]

I’m very pro-chooch….

[@meme2287]

Ha! I was just wondering if there was a new Blondihacks video, so I check KZbin, and lo and behold, it was just uploaded.

[@bigboybuilder]

look into automatic transmission seal rings. it will get very hard to find a predetermined size but if drawing your own plans...